Middle Atlantic Skirted Caster Base 20IN. D ERK Series Includes 4 Casters Steel - CBS-ERK-20

Middle Atlantic CBS-ERK-20 Skirted Caster Base for ERK Series Racks

Overview

The CBS-ERK-20 is a skirted caster base designed specifically for Middle Atlantic's Middle Atlantic ERK series rack enclosures, adding mobility to otherwise stationary open-frame or enclosed racks in equipment rooms, broadcast environments, and rack accessory deployments where repositioning without disassembly is a practical requirement. At 20 inches deep and rated to 1,300 lbs (589.7 kg), the CBS-ERK-20 handles fully loaded racks — dense patch panels, UPS units, and multizone amplifier stacks — without flex or instability concerns. The 4-inch overall height keeps the base profile low, minimizing the total rack footprint change. The black wrinkle powder coat finish matches the standard ERK enclosure aesthetic, so the base doesn't create a visible break in a client-facing installation.

Compatibility

The CBS-ERK-20 is engineered for the Middle Atlantic ERK (Slim 5) series open-frame rack line with a 20-inch depth footprint. Confirm your ERK rack's listed depth matches the 20-inch base before ordering — Middle Atlantic offers caster base variants at multiple depths, and using a mismatched depth leaves the rack overhanging or under-supported. This base is not interchangeable with WRK, BGR, or other Middle Atlantic frame series that use different mounting footprint dimensions. If you are working with a network rack or AV equipment rack outside the ERK line, verify the mounting hole pattern and base dimensions against your specific enclosure model.

Installation Notes

The CBS-ERK-20 mounts beneath the ERK rack frame and ships with four casters already integrated into the skirted base assembly. Product weight is 15.5 lbs (7 kg); factor this into total system weight when calculating floor load for raised flooring or equipment platforms. The 22-inch width and 20-inch depth define the floor footprint — verify clearance in the installation bay before rolling the assembled rack into position. No tools or torque specs are called out in the manufacturer's published specifications for the caster attachment; the assembly is designed for tool-free deployment as a base unit. For fixed installations requiring lockout, confirm whether your casters include a locking mechanism before relying on the unit remaining stationary under load.